Wrench.



J. S. LIGHT.

WRENCH.

APPLICATION FILED FEB-28.19M-

Pat-exited Oct. 10,1916.

rm: mwms PEIERS ca. Pncmumm wlsmucmm n cy JOHN S. LIGHT, OF ELECTRIC IVIILLS, MISSISSIPPI.

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Specification of Letters Patent.

Patented Oct. 10, 1916.

Application filed February 28, 1916. Serial No. 81,019.

To all whom it may concern:

Be it known that I, JOHN S. LIGHT, a citizen of the United States, residing at Electric Mills, in the county of Kemper and State of Mississippi, have invented new and useful Improvements in Wrenches, of which the following is a specification.

My present invention pertains to Wrenches; and it contemplates the provision of a wrench, of the Stillson type, that is simple and strong, is capable of being expeditiously and easily adjusted to fit it to work, and is reliable in operation.

To the attainment of the foregoing, the invention consists in the peculiar construc tion, novel combination and adaptation of parts as hereinafter described and claimed.

In the accompanying drawings, which ar hereby made a part hereof: Figure 1 is a side elevation of a wrench constructed in accordance with my invention. Fig. 2 is a detail elevation taken at a right-angle to Fig. 1 and showing the spring on the shank of the fixed jaw. Fig. 3 is a transverse section,.taken in the plane of line 33 of Fig. 1.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

Among other elements, my novel wrench comprises a toothed fixed jaw 1 and .a shank 2 integral with and extending from the back of said jaw. The said shank 2 is tapered at its back edge 3 in a direction away from the jaw 1, and is provided with an enlargement 4 and a reduced portion 5, to engage a wooden or other suitable handle 6, Fig. 1.

Formed integral with or otherwise fixed at one end to the shank enlargement 4 is a spring plate 7 which is opposed to and spaced from the tapered edge 3 of the shank, and has its free end disposed back of and adjacent to the fixed jaw as shown. At 8 the said plate 7 is preferably, though not necessarily, provided with lateral projections, designed to enable an operator to conveniently press the plate inwardly with his thumb.

Slidably mounted on the shank 2 is a body 9 which is equipped with teeth 10, arranged to cooperate with teeth 11 on the forward edge of the shank. The said body 9 is provided with an intermediate transverse wall 12 and side walls 13, and seated at one end on said walls 13 is a coiled spring.

The movable jaw 15 of the wrench is toothed at its inner side and is arranged in advance of the fixed jaw 1 as shown. Formed integral with said jaw 15 is a shank 16 which is arranged in approximately parallel relation to the shank 2, is fulcrumed at 17 between the side walls of the body 9, and is provided with an inner arm 18, arranged at the opposite end of the spring 14:, with reference to the wall 12.

In the practical use of my novel wrench, it is obvious that the movable jaw may be expeditiously and easily positioned with respect to the fixed jaw tofit the wrench for the work in hand. It will also be readily understood that when power is applied to the wrench handle, the jaws will take secure hold of the article to be turned, while the teeth of the slidable body will engage the teeth of the shank, so that there is no liability of the jaws slipping. When, however, it is desired to release the wrench, it is simply necessary for the operator to press inwardly on the spring-plate.

Having described my invention, what I claim and desire to secure by Letters-Patent, is:

1. A wrench comprising a fixed jaw, a shank integral with the fixed jaw and extending from the back thereof and having a tapered rear edge and also having an enlargement at the end of the taper and further having teeth at its forward edge, a spring plate integral with the enlargement of the shank and arranged in spaced and parallel relation to the shank, a body slidable and movable on the shank and having teeth opposed to those of the shank and also having side walls and a transverse intermediate wall, the latter arranged at the opposite side of the spring-plate, with reference to the shank, a movable jaw opposed to the fixed jaw and having a shank fulcrumed at an intermediate point of its length between the side walls of the body and a coiled spring interposed between the transverse wall of the body and the inner arm of the shank on the movable aw.

, 2. A wrench comprising a fixed jaw having a shanktapered at one edge and toothed at its opposite edge, a spring plate fixed at one end to said shank and spaced from the tapered edge thereof, a toothed body movable on the shank and plate and engaged by the plate, a movable jaw having a shank pivoted at an intermediate point of its length to the body, and yielding means interposed between the inner arm of said shank and the body.

3. A Wrench comprising a fixed jaw having a shank toothed at one edge, a spring plate carried by the shank and extending longitudinally thereof and spaced from one edge of the shank, a toothed body movable longitudinally and laterally on the shank and plate, a movable jaw having a shank pivoted at an intermediate point of its length to the body and also having a portion extending rearwardly of the pivot point, and means engaging said portion for yieldingly pressing the same outwardly.

In testimony whereof I have hereunto set 15 my hand in presence of two subscribing Witnesses.

JOHN S. LIGHT.

R. P. BURGESS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, C. 

